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Armin Strom Gravity Equal Force Oster | LE10 - SOLD OUT

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While at its core it is similar to the predecessor Gravity models, Gravity Equal Force is designed to be easier to read at a glance while making sure that the mechanics remain a focus. And, of course, to be a bit more contemporary

Limited edition of 10 pieces - SOLD OUT

The rear of the entirely fresh Caliber ASB19 takes on a new aesthetic as well, serving as a combination of past Armin Strom design cues (such as the style of the winged plate supporting the micro rotor) and historical pocket watches (repeating the style of individual cocks for the going train and balance).

The new caliber also sports upgraded, differentiated finishing for a true haute horlogerie package. The aesthetic changes are enough to mark the Gravity Equal Force as a shift. Blue base plate created by Kari Voutilainen.


ASB19 with micro rotor on dial side and Geneva-drive constant force barrel
hours, minutes, seconds; power reserve
Regulating System
Power Reserve
72-hour power reserve
25,200 vph
Stainless steel
41 mm
12 mm

Learn more about Armin Strom's Gravity Equal Force

Read more about this unique watch collaboration at

Oster Jewelers is an Authorized Armin Strom Watch Dealer